Lewis Acid Promoted Reactions. (IV.)1a,bOxidation Deprotection of Trimethylsilyl Ethers with Silver and Sodium Bromates; AgBrO3, NaBrO3
摘要:
Primary and secondary benzylic and saturated trimethylsilyl ethers are converted to their carbonyl compounds with AgBrO3/AlCl3 efficiently. p-Hydroquinonetrimethylsilyl ether is also converted with both AgBrO3/AlCl3 and NaBrO3/AlCl3 to p-benzoquinone. AgBrO3/AlCl3 is also able to oxidize primary trimethylsilyl ethers to their carboxylic acids. Primary and secondary benzylic trimethylsilyl ethers are also converted to their carbonyl compounds with NaBrO3/AlCl3;AgBrO3 is more efficient and selective oxidant than NaBrO3.
conversion of trimethylsilyl ethers to acetyl or formyl esters with TiCl<sub>4</sub>
作者:Nasser Iranpoor、Behzad Zeynizadeh
DOI:10.1080/00397919908086206
日期:1999.6
A simple method is described for the efficient conversion of trimethylsilyl ethers to their corresponding acetyl and formyl esters in refluxing ethyl acetate or ethyl formate in the presence of TiCl4.
ITO, SATORU;KASAI, MASAJI;ZIFFER, HERMAN;SILVERTON, J. V., CAN. J. CHEM., 65,(1987) N 3, 574-582
作者:ITO, SATORU、KASAI, MASAJI、ZIFFER, HERMAN、SILVERTON, J. V.